working rhalflife; added tag density tab
working rhalflife; added tag density tab

johnrsibert/tagest,tom-peatman/tagest,tom-peatman/tagest,tom-peatman/tagest,tom-peatman/tagest,johnrsibert/tagest,tom-peatman/tagest,johnrsibert/tagest,johnrsibert/tagest,johnrsibert/tagest,johnrsibert/tagest,tom-peatman/tagest